Mirrored prototype using Apples iOS26 ui-kit is really slow and drains the battery

Yes, I’ve just created a small prototype and noticed that the liquid glass effects totally breaks “smart animate” transitions. After hiding the BG layers where the effects are applied, the transitions work as expected.

It seems we’ll have to deal with issues like this for a while, so I’m considering not showing the effect in my UI components, so that prototypes are still functional.

I must add though that I had the issue when using the UI components from Apple UI Kit. Applying the glass effect available in Figma works well.

With more testing I noticed that is the “Blur” layer in the liquid glass backgrounds that makes transitions run slow. Simply hiding it solved the issue.

+1 I am also having this issue - also some weird transparency issues on Liquid Glass, when it’s in an overlay that is sliding/pushing in/out of the page

The issue happens on Figma Mirror - but also just in the Figma desktop app when previewing a prototype.

Here’s another thread that I’ve replied in that talks about this smart animation issue: